Mounting bracket for electrical or communication device

ABSTRACT

A stud mounting bracket for a junction box includes a mounting extension extending outward from a longitudinal end margin of a main body. The mounting extension includes a mounting body connected to the longitudinal end margin of the main body and an extension tab connected to the mounting body. The extension tab is pivotable relative to the mounting body about an axis from a compact configuration to an extended configuration to increase the length of the mounting extension. A box mounting bracket for mounting a junction box on a stud mounting bracket includes first and second jaws. The first and second jaws engage the stud mounting bracket for use in attaching the box mounting bracket to the stud mounting bracket. The first and second jaws are resiliently deflectable both relative to the base and independent of one another when attaching the box mounting bracket to the stud mounting bracket.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claim is a continuation application of U.S.application Ser. No. 14/811,278, filed Jul. 28, 2015, the entirety ofwhich is hereby incorporated by reference.

FIELD OF THE DISCLOSURE

The present disclosure generally relates to a mounting bracket formounting an electrical or communication device on a wall stud.

BACKGROUND OF THE DISCLOSURE

Typically, an electrical or communication device is installed in abuilding using a mounting bracket. The communication device is fastenedto the mounting bracket, and in turn, the mounting bracket is fastenedto framing (e.g., a wall stud). In some circumstances, junction boxesare used to house and protect electrical and communication devices, suchas electrical outlets, electrical switches, associated electricalwiring, communication terminals (e.g., terminals for fiber optics), andassociated communication cables (e.g., optical fiber cables). Thejunction box is secured to the mounting bracket, so that, in turn, theelectrical or communication device is secured to the mounting bracket.

SUMMARY OF THE DISCLOSURE

In one aspect, a stud mounting bracket for a junction box generallycomprises an elongate main body having a length and oppositelongitudinal end margins. A mounting extension extends outward from oneof the longitudinal end margins of the main body. The mounting extensionhas a length extending from the longitudinal end margin of the main bodyto a free end of the mounting extension. The mounting extension includesa mounting body connected to the longitudinal end margin of the mainbody and an extension tab connected to the mounting body. The extensiontab is pivotable relative to the mounting body about an axis from acompact configuration to an extended configuration to increase thelength of the mounting extension.

In another aspect, a box mounting bracket for mounting a junction box ona stud mounting bracket generally comprises a base having a front face,a rear face, an upper edge margin and a lower edge margin. The base isconstructed for attaching a junction box to the front face thereof. Afirst jaw extends rearward from one of the upper and lower edge marginsof the base. The first jaw is configured to engage the stud mountingbracket for use in attaching the box mounting bracket to the studmounting bracket. A second jaw extends rearward from one of the upperand lower edge margins of the base. The first jaw is configured toengage the stud mounting bracket for use in attaching the box mountingbracket to the stud mounting bracket. The first and second jaws areresiliently deflectable both relative to the base and independent of oneanother when attaching the box mounting bracket to the stud mountingbracket.

Other features will be in part apparent and in part pointed outhereinafter.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective of one embodiment of a stud mounting bracket foran electrical or communication device, showing an initial configurationof the stud mounting bracket;

FIG. 2 is a front elevation of the stud mounting bracket of FIG. 1;

FIG. 3 is an enlarged partial view of the stud mounting bracket of FIG.1;

FIG. 4 is a perspective of a stud mounting bracket assembly includingthe stud mounting bracket, a junction box, and a box plate, illustratingthe stud mounting bracket assembly attached to spaced wall studs and thestud mounting bracket in a first mounting configuration;

FIG. 5 is a perspective of a stud mounting bracket assembly includingthe stud mounting bracket, a junction box, and a box plate, illustratingthe stud mounting bracket assembly attached to spaced wall studs and thestud mounting bracket in a second mounting configuration;

FIG. 6 is an enlarged partial view of the stud mounting bracket of FIG.1, illustrating an extended configuration of the stud mounting bracket;

FIG. 7 is a perspective of a stud mounting bracket assembly includingthe stud mounting bracket, a junction box, and a box plate, illustratingthe stud mounting bracket assembly attached to spaced wall studs and thestud mounting bracket in a third mounting configuration;

FIG. 8 is a perspective of a stud mounting bracket assembly includingthe stud mounting bracket, a junction box, and a box plate, illustratingthe stud mounting bracket assembly attached to spaced wall studs and thestud mounting bracket in a fourth mounting configuration;

FIG. 9 is an enlarged, partial view of a second embodiment of a mountingextension of the stud mounting bracket, illustrating the mountingextension in an initial configuration;

FIG. 10 is an enlarged, partial view of the mounting extension of FIG.9, illustrating the mounting extension in an extended configuration;

FIG. 11 is a perspective of a stud mounting bracket according to anotherembodiment, illustrating barbs on mounting extensions of the studmounting bracket;

FIG. 12 is a perspective of a stud mounting bracket assembly includingthe stud mounting bracket of FIG. 11, a junction box, and a box plate,illustrating the stud mounting bracket assembly attached to spaced wallstuds and the stud mounting bracket in a mounting configuration;

FIG. 13 is a perspective of a box mounting bracket for mounting ajunction box on a stud mounting bracket;

FIG. 14 is a rear perspective of the box mounting bracket of FIG. 13;

FIG. 15 is a rear perspective of a stud mounting bracket assemblyincluding the stud mounting bracket of FIG. 1, the box mounting bracketof FIG. 13, and a junction box, illustrating the box mounting bracketmounting the junction box on the stud mounting bracket;

FIG. 16 is a section taken along line 16-16 of FIG. 15, illustrating theconnection of the box mounting bracket to an outer bar of the studmounting bracket; and

FIG. 17 is a section taken along line 17-17 of FIG. 15, illustrating theconnection of the box mounting bracket to an inner bar of the studmounting bracket.

Corresponding reference characters indicate corresponding partsthroughout the drawings.

DETAILED DESCRIPTION

Referring to FIGS. 1-8, a first embodiment of a stud-to-stud mountingbracket (i.e., a stud mounting bracket) for mounting an electrical orcommunication device (or the like) between wall studs (e.g., metal wallstuds) is generally indicated at reference numeral 10. In thisembodiment, the stud mounting bracket 10 is an adjustable bracket in theform of a telescoping bar assembly comprising outer and inner bars 12,14, respectively, telescopically and slidably connected to one anotherto permit adjustment of the length of the stud mounting bracket. Eachtelescoping bar 12, 14 may be a unitary, one-piece construction. Eachbar 12, 14 may be formed from a single sheet metal (e.g., steel oraluminum) or other suitable material. In FIGS. 1 and 2, the studmounting bracket 10 is shown in an initial configuration. As set forthbelow, in general the stud mounting bracket 10 is configured to be bentfrom the initial configuration to a plurality of different mountingconfigurations. The orientation of the stud mounting bracket 10 in thedrawings provides the point of reference for the terms defining relativelocations and positions of structures and components of the bracket,including but not limited to the terms “upper,” “lower,” “left,”“right,” “top,” “bottom,” “forward,” and “rearward,” as used throughoutthe present disclosure.

Referring still to FIGS. 1-8, the outer bar 12 includes a main body 16that is generally rectangular having opposite upper and lower edgemargins 18, 20, opposite left and right end margins 22, 24, a front face26, a rear face 28, and a forwardly-opening, generally horizontalchannel 30 extending the length of the main body and locatedapproximately midway between the upper and lower edge margins. Aplurality of pilot holes 32 (as shown in FIG. 2) are spaced along abottom wall of the channel 30 at regular intervals and can be used toattach a junction box to the bar 12. A pair of integral upper and lowerflanges 34, 36, respectively, extends generally horizontally rearwardfrom the respective upper and lower edge margins 18, 20. Lips (or returnflanges) 38, 40 extend from the respective flanges 34, 36 generallytoward each other. Likewise, the inner bar 14 includes a main body 46that is generally rectangular having opposite upper and lower edgemargins 48, 50, opposite left and right end margins 52, 54, a front face56, a rear face 58, and a forwardly-opening, generally horizontalchannel 60 extending the length of the main body and locatedapproximately midway between the upper and lower edge margins. Aplurality of pilot holes 62 (FIG. 2) are spaced along a bottom wall ofthe channel 60 at regular intervals and can be used to attach a junctionbox to the bar 14. A pair of integral upper and lower flanges 64, 66extends generally horizontally rearward from the respective upper andlower edge margins 48, 50. Lips (or return flanges) 68, 70 extend fromthe respective flanges 64, 66 generally toward each other. The outer andinner bars 12, 14 are similar, with the outer bar 12 having a slightlylarger cross section than the inner bar 14 such that the inner bar fitsinside the outer bar 12 with the front face 56, flanges 64, 66, and lips68, 70 of the inner bar 14 generally in sliding engagement with therespective front face 26, flanges 34, 36, and lips 38, 40 of the outerbar 12.

Each of the outer and inner bars 12, 14 includes a mounting extension 72extending laterally outward from the corresponding outer end margin 24,52 of the corresponding main body 16, 46, such that the stud mountingbracket 10 includes a mounting extension 72 at each longitudinal end. Ingeneral, these mounting extensions 72 are used to secure the studmounting bracket 10 to wall studs WS using suitable fasteners S (e.g.,standard self-tapping sheet metal screws), as shown in FIGS. 4, 5, 7,and 8, for example. Only one mounting extension is described in detailbelow, with the understanding that both telescoping bars includesubstantially similar mounting extensions extending from one endthereof. It is understood that the stud mounting bracket 10 may includethe mounting extension 72 at only one longitudinal end thereof. It isalso understood that the stud mounting bracket 10 may be a fixed lengthmounting bracket, rather than an adjustable length mounting bracket.

Referring to FIGS. 1-8, the mounting extension 72 is configurable to oneof a plurality of mounting configurations for mounting different sizejunction boxes J to the wall studs WS. When fastened to the studmounting bracket 10, the junction box J, or a box plate BP attached tothe junction box, is generally aligned with a front mounting surface F1of the wall stud WS. As an example, the stud mounting bracket 10 issuitable for use with the junction boxes J having the following knownsizes (length of upper and lower sides x length of left and rightsides): 4×4 in, 4 11/16×4 11/16 in, 5×5 in, and multi-gang boxes.

With reference to FIGS. 2 and 3, the mounting extension 72 includes anelongate, generally rectangular mounting body, generally indicated at74, extending laterally outward from one of the end margins of the studmounting bracket 10 (e.g., the left end margin 52 of the main body 46 ofthe inner bar 14), and an extension tab 78 which, in the illustratedembodiment, is connected to the mounting body. An interior section ofthe mounting extension 72 comprises the extension tab 78. An exteriorsection of the mounting body 72 comprises the mounting body 74. Themounting body 74 and extension tab 78 are generally planar in theinitial configuration shown in FIGS. 1-3. As explained in more detailbelow, the mounting body 74 and/or extension tab 78 are configured forbending about spaced apart bending axes 76 a-76 e extending generallytransverse (e.g., perpendicular) to the mounting body and/or extensiontab. Bending areas of the mounting body 74 define the bending axes 76a-76 e to allow for configuring the mounting extension 72 into aselected one of the mounting configurations depending on the size of thejunction box J to be secured to the wall studs WS using the studmounting bracket 10. For example, the bending areas may comprise linesof weakness to facilitate bending of the mounting body 74 about thebending axes 76 a-76 e. As seen in FIGS. 2 and 3, the lines of weaknessmay be at least partially defined by notches (or cutouts) and/oropenings (e.g., slots) in the mounting body 74. The bending axes 76 a-76e pass through these notches and/or openings. Other suitable ways offacilitating bending of the mounting body 74 and/or the extension tab 78about the bending axes 76 a-76 e do not depart from the scope of thepresent invention. For example, thinning material at the bendinglocations or rigidifying the mounting body at opposite sides of thebending locations may facilitate bending about the bending axes 76 a-76e.

When the mounting extension 72 is in a selected mounting configuration(see, e.g., FIGS. 4, 5, 7, and 8), the mounting body 74 defines a leg 80extending forward from the stud mounting bracket 10 (e.g., front face 56of bar 14) and a stud mounting flange 82 extending laterally from theleg and including openings 84 for receiving screws S for securing thestud mounting bracket 10 to the front mounting surface F1 of the wallstud WS. A length of the leg 80 generally corresponds to a depth of thejunction box J being mounted on the stud mounting bracket 10. Asdescribed below and illustrated in FIGS. 1-8, the mounting extension 72includes openings 84 in the mounting body 74 for receiving a fastener(e.g., screws S) to attach the stud mounting bracket 10 to the wall studWS when the mounting extension is in a compact configuration. Themounting extension 72 includes openings 84 in the extension tab 78 forreceiving a fastener (e.g., screws S) to attach the stud mountingbracket 10 to the wall stud WS when the mounting extension is in anextended configuration. When the mounting extension 72 is in one of themounting configurations and the stud mounting bracket 10 is secured tothe wall stud WS (e.g., the stud mounting bracket is secured to thefront mounting surface F1 of the wall stud WS), a front face of thejunction box J attached to the stud mounting bracket or the front faceof the box plate BP attached to the junction box J may be coplanar with(lie within the plane) or disposed rearward of the plane defined by thefront mounting surface F1 of the wall stud WS.

FIG. 4 illustrates a first mounting configuration, suitable for use witha junction box J having a first depth, for example a 4×4 in junction boxJ having a depth of 1½ in. In this first mounting configuration, themounting body 74 is bent forward about the bending axis 76 a at the leftend margin 52 of the main body 46 such that the mounting body extendsgenerally perpendicular to the front face 56, thereby forming the leg80. The mounting body 74 and the extension tab 78 are also bent togetherabout the bending axis 76 c to form the stud mounting flange 82extending laterally outward and generally perpendicular to the leg 80.The bending axis 76 c for use with a junction box having a depth of 1½in can be marked with indicia including numbers corresponding to thejunction box depth and/or other indicia identifying the bending areas toinform a user of the proper mounting configuration. The screw S passesthrough the fastener opening 84 and into the stud WS to secure thebracket 10 to the stud.

FIG. 5 illustrates a second mounting configuration of the mountingextension 72 suitable for use with a junction box J having a seconddepth, for example a 4 11/16×4 11/16 in junction box J having a depth of2⅛ in. The mounting body 74 is bent forward about the bending axis 76 aat the left end margin 52 of the main body 46 such that the mountingbody extends generally perpendicular to the front face 56, therebyforming the leg 80. The mounting body 74 is then bent about the bendingaxis 76 e to form the stud mounting flange 82 extending laterallyoutward and generally perpendicular to the leg 80. The bending axis 76 efor use with a junction box having a depth of 2⅛ in be marked withindicia including numbers corresponding to the junction box depth and/orother indicia identifying the bending areas to inform a user of theproper mounting configuration. The screw S passes through the fasteneropening 84 and into the stud WS to secure the bracket 10 to the stud.

By using the extension tab 78, for example, the mounting extension 72 isalso configured to accommodate larger junction box depths without addingadditional material to the end of the mounting extension. Referring toFIGS. 3 and 6, in an initial or compact configuration, the mountingextension 72 has an initial length L1, measured from the side edgemargin of the stud mounting bracket 10 (e.g., from the left end margin52 of the main body 46 of bar 14) to a free end 86 of the mountingextension. In the compact configuration, a free end of the extension tab78 is positioned closer to the side edge margin of the main body than afree end of the mounting body 74. The mounting extension 72, for examplethe mounting body 74, can be bent back on itself about the bending axis76 d such that the extension tab 78 extends longitudinally outward fromthe mounting body, thereby increasing the length of the mountingextension to an extended length L2, which is greater than the initiallength L1. The extension tab 78 is pivoted relative to the mounting body74 about the bending or pivoting axis 76 d to extend the length of themounting extension 72. In the extended configuration, the extension tab78 extends laterally beyond the mounting body 74. In the extendedconfiguration, the free end of the mounting body 74 is positioned closerto the side edge margin of the main body than the free end of theextension tab 78. In the illustrated embodiment, portions of themounting extension 72 must first be cut at locations 88, 90 to free anend margin of the extension tab 78 and allow the extension tab to rotateor pivot outward from the mounting body as the mounting body is foldedon itself about the axis 76 d. Specifically, a free end of the extensiontab 78 opposite the pivoting axis 76 d is removably attached to themounting body 74. It is understood that other configurations are withinthe scope of the present invention. For example, the mounting extension72 can be free of material at locations 88, 90 (i.e., the free end ofthe extension tab 78 is not initially attached to the mounting body 74),such that the extension tab is free to extend the length of the mountingextension without requiring any cutting.

FIG. 7 illustrates a third mounting configuration of the mountingextension 72 suitable for use with a junction box J having a thirddepth, for example a multi-gang junction box J having a depth of 2½ in.If necessary, portions of the mounting extension 72 are cut at locations88, 90 to free the extension tab 78 for bending to extend the length ofthe mounting extension 72. The mounting body 74 is bent back on itselfabout the bending axis 76 d such that the extension tab 78 rotates orpivots outward from the mounting body and extends the length of themounting extension 72. The mounting body 74 is bent forward about thebending axis 76 a at the left edge margin 52 of the main body 46 suchthat the mounting body and at least a portion of the extension tabextends generally perpendicular to the front face 56, thereby formingthe leg 80. The extension tab 78 is bent about the bending axis 76 c toform the stud mounting flange 82 extending laterally outward from andgenerally perpendicular to the leg 80. The bending axes 76 d and 76 cfor use with a junction box having a depth of 2½ in can be marked withindicia including numbers corresponding to the junction box depth and/orother indicia identifying the bending areas to inform a user of theproper mounting configuration. One or more screws S (e.g., two screws)passes through one or more fastener openings 84 of the extension tab 78and into the stud WS to secure the bracket 10 to the stud.

FIG. 8 illustrates another mounting configuration of the mountingextension 72 suitable for use with a junction box J having a fourthdepth, for example a 5×5 in junction box J having a depth of 2 13/16 in.If necessary, the mounting extension 72 is cut at locations 88, 90 tofree the extension tab 78 for bending to extend the length of themounting extension 72. The mounting body 74 is bent back on itself aboutthe bending axis 76 d such that the extension tab 78 rotates or pivotsoutward from the mounting body and extends the length of the mountingextension 72. The mounting body 74 is bent forward about the bendingaxis 76 a at the left end margin 52 of the main body 46 such that themounting body extends generally perpendicular to the front face 56,thereby forming the leg 80. The extension tab 78 is bent about thebending axis 76 b to form the stud mounting flange 82 extendinglaterally outward from and generally perpendicular to the leg 80. Thebending axes 76 d and 76 b for use with a junction box having a depth of2 13/16 in can be marked with indicia including numbers corresponding tothe junction box depth and/or other indicia identifying the bendingareas to inform a user of the proper mounting configuration. One or morescrews S (e.g., two screws) passes through one or more fastener openings84 of the extension tab 78 and into the stud WS to secure the bracket 10to the stud.

As can be seen from the above disclosure and FIGS. 1-8, the mountingextension 72 of the stud mounting bracket 10 can be configured in aplurality of mounting configurations for use with the typical junctionboxes J having depths of 1½ in, 2⅛ in, 2½ in, and 2 13/16 in, therebyeliminating the need for a number of stud mounting brackets of differentdepths. Moreover, as disclosed above, the mounting extension isconfigurable to an extended length greater than an initial length foraccommodating larger depth junction boxes without requiring additionalmaterial be added to the end of the mounting extension. The mountingextension 72 as described above can be used with different stud mountingbrackets other than the described telescoping bracket within the scopeof the present invention. For example, a fixed length stud mountingbracket can include a mounting extension 72 on one or both ends thereof.Other configurations are within the scope of the present invention.

FIGS. 9-12 illustrate alternate embodiments for the mounting extension72. Corresponding reference numbers are used to refer to correspondingelements. Where elements are substantially similar to the embodimentsdescribed above, they will not be described in detail again below.

In the embodiment of FIGS. 9 and 10, the mounting extension 172 includestwo extension tabs 178 positioned on the outside of the mounting body174. In this embodiment, an interior section of the mounting extension172 comprises the mounting body 174. An exterior section of the mountingextension 172 comprises the extension tab 178. The extension tabs 178are attached to the mounting body 174 at a bending or pivoting axis 176d. The extension tabs 178 can also be removably attached to the mountingbody 174 at a free end opposite the pivoting axis 176 d. The mountingextension 172 can be cut at locations 188, 190 to free the extensiontabs 178. The mounting body 174 can then be bent back on itself aboutbending axis 176 d to rotate the extension tabs 178 such that theextension tabs extend longitudinally outward from the mounting body,thereby extending the length of the mounting extension 172. Screws areinserted through one or more of the openings 184 to fasten the mountingextension to the wall stud. The method of configuring a stud mountingbracket including the mounting extensions 172 for use with boxes ofvarious sizes is similar to the method set forth above with respect tothe first embodiment.

In the embodiment of FIGS. 11 and 12, the mounting extension 272includes barbs 292 for contacting the wall stud WS to hold the studmounting bracket 210 in place on the wall stud until mounting screws Scan be inserted through the opening 284 to fasten the stud mountingbracket to the wall stud.

FIGS. 13-17 illustrate an embodiment of a box mounting bracket 500 foruse in attaching a junction box J to the stud mounting bracket 10. Inthis embodiment, the box mounting bracket 500 is a unitary, one-piececonstruction. The box mounting bracket 500 may be formed from a singlesheet of metal (e.g., steel or aluminum) or other suitable material. Inone embodiment, the box mounting bracket 500 is formed from springsteel. The box mounting bracket 500 includes a base 502 that isgenerally rectangular having opposite upper and lower edge margins 504,506, opposite left and right edge margins 508, 510, a front face 512,and a rear face 514. An attachment tab 516 extends upward from the upperedge margin 504 and includes openings 518 for receiving a fastener F toattach a junction box J to the box mounting bracket 500. A tang 520extends downward and forward from the lower edge margin 506. The tang520 is inserted into an opening in the back wall of the junction box Jwhen the junction box is attached to the box mounting bracket 500. Atang 522 extends rearward from the base 502 and extends into the channel30, 60 of the stud mounting bracket 10 when the box mounting bracket 500is attached to the stud mounting bracket. The base 502 also includesopenings 524 for optionally receiving fasteners to attach the boxmounting bracket 500 to the stud mounting bracket 10.

The box mounting bracket 500 includes first and second independentlymovable upper jaws 530, 532 and first and second independently movablelower jaws 534, 536. The jaws 530, 532, 534, 536 are configured to clipon to the telescoping bars 12, 14 of the stud mounting bracket 10. Inthe illustrated embodiment, each jaw 530, 532, 534, 536 can beresiliently deflected to clip onto the stud mounting bracket 10,independent of any resilient deflection of the other jaws. Because eachjaw is independently movable, the box mounting bracket 500 can bepositioned entirely on the outer telescoping bar 12, be positionedentirely on the inner telescoping bar 14, or straddle the outer and theinner bars (see FIG. 15).

Each upper jaw 530, 532 comprises an arm 538 extending rearward from thebase 502 at the upper edge margin 504, a leg 540 extending downward fromthe arm, and a hook 542 extending forward from the leg. Each lower jaw534, 536 comprises an outer arm 544 extending rearward from the base 502at the lower edge margin 506 and an inner arm 546 extending forward fromthe outer arm. Optionally, the outer arms 544 of the lower jaws 534, 536are connected by a connecting member 548, as illustrated. Alternatively,the lower jaws 534, 536 can be completely separate with no connectingmember extending therebetween. Although the outer arms 544 of the lowerjaws 534, 536 are connected by the connecting member 548 in theillustrated embodiment, the inner arms 546 are independently movable,thereby making the lower jaws independently movable relative to eachother. A pair of tangs 550 extends generally upward and forward from theconnecting member 548 between the outer arms 544 for inhibitinginadvertent removal of the box mounting bracket 500 from the studmounting bracket 10, as will be described below.

When the box mounting bracket 500 is positioned on the outer bar 12(FIG. 16) of the stud mounting bracket 10, the upper jaw 532 clipsaround the upper flange 34 of the bar. The hook 542 of the upper jaw 532extends below the upper lip 38 of the telescoping bar 12. The lower jaw536 engages the lower flange 36 of the bar 12 and clamps the bar betweenthe upper jaw 530 and the lower jaw. The inner arm 546 of the lower jaw536 flexes downward to accommodate the telescoping bar 12 and to clampthe bar between the upper and lower jaws. The upper jaw 532 and/or thelower jaw 536 (including the outer arm 544 and/or the inner arm 546) canresiliently deflect to accommodate the outer bar 12. If force is appliedto the top of the box mounting bracket 500 (e.g., if the top of ajunction box J attached to the box mounting bracket is contacted duringinstallation of dry wall), the tangs 550 will contact the lip 40 of thetelescoping bar 12 and prevent the box mounting bracket from coming offthe bar. If force is applied to the bottom of the box mounting bracket500 (e.g., if the bottom of a junction box J attached to the boxmounting bracket is contacted during installation of dry wall), the hook542 will contact the lip 38 of the bar 12 and prevent the box mountingbracket from coming off the bar. Thus, once the box mounting bracket 500is positioned on the stud mounting bracket 10, inadvertent removal dueto forces acting on the box mounting bracket is prevented. In order toremove the box mounting bracket 500, a tool (e.g., a screwdriver) can beinserted between the connecting member 548 and the telescoping bar 12 topry the box mounting bracket off the bar.

When the box mounting bracket 500 is positioned on the inner telescopingbar 14 (FIG. 17), the upper jaw 530 clips around the upper flange 64 ofthe bar. The hook 542 of the upper jaw 530 extends below the upper lip68 of the telescoping bar 14. The lower jaw 534 engages the lower flange66 of the bar 14 and clamps the bar between the upper jaw 532 and thelower jaw. The inner arm 546 of the lower jaw 534 flexes downward toaccommodate the telescoping bar 14 and to clamp the bar between theupper and lower jaws. The upper jaw 530 and/or the lower jaw 534(including the outer arm 544 and/or the inner arm 546) can resilientlydeflect to accommodate the outer bar 12. If force is applied to the topof the box mounting bracket 500 (e.g., if the top of a junction box Jattached to the box mounting bracket is contacted during installation ofdry wall), the tangs 550 will contact the lip 70 of the telescoping bar14 and prevent the box mounting bracket from coming off the bar. Ifforce is applied to the bottom of the box mounting bracket 500 (e.g., ifthe bottom of a junction box J attached to the box mounting bracket iscontacted during installation of dry wall), the hook 542 will contactthe lip 68 of the bar 14 and prevent the box mounting bracket fromcoming off the bar. Thus, once the box mounting bracket 500 ispositioned on the stud mounting bracket 10, inadvertent removal due toforces acting on the box mounting bracket is prevented. In order toremove the box mounting bracket 500, a tool (e.g., a screwdriver) can beinserted between the connecting member 548 and the telescoping bar 14 topry the box mounting bracket off the bar.

Because the upper jaws 530, 532 are independently movable relative toeach other and the lower jaws 534, 536 are independently movablerelative to each other, the box mounting bracket 500 can be positionedat any location along the stud mounting bracket 10. If the box mountingbracket 500 is positioned partially on the outer bar 12 and partially onthe inner bar 14, the jaws positioned on the outer bar engage thebracket as described above with reference to jaws 532, 536 (FIG. 16),and the jaws positioned on the inner bar engage the bracket as describedabove with reference to jaws 530, 534 (FIG. 17). Other configurationsincluding independently movable upper and lower jaws are within thescope of the present invention. For example, the upper and lower jawscan have the same construction (e.g., both the upper and lower jaws canbe configured as the upper jaws described above, or both the upper andlower jaws can be configured as the lower jaws described above).Alternatively, only one side of the box mounting bracket (the upper sideor the lower side) may include independently movable jaws.

The stud mounting bracket 10 can be sold and shipped to customersseparately or as part of an assembly, such as a pre-assembled electricalunit, or as part of a kit. Likewise, the box mounting bracket 500 can besold and shipped to customers separately or as part of an assembly, suchas a pre-assembled electrical unit, or as part of a kit. In oneembodiment, a stud mounting bracket assembly includes the stud mountingbracket 10 as described above, the box mounting bracket 500 as describedabove, and a junction box J for attachment to the stud mounting bracket.The junction box J can be attached to the stud mounting bracket as-soldwith the stud mounting bracket either in the initial configuration(FIGS. 1 and 2) or in a mounting configuration for use with the junctionbox. Alternatively, the stud mounting bracket 10, box mounting bracket500, and junction box J can be sold together as a kit for assembly bythe user. In another embodiment, the stud mounting bracket 10, junctionbox J, and box plate BP can be sold together, either assembled ordisassembled. In yet another embodiment, a stud mounting bracketassembly includes the stud mounting bracket 10 and the box mountingbracket 500. The stud mounting bracket and box mounting bracket can besold assembled or disassembled. In any of the above embodiments, theassembly can further include additional junction boxes J and box platesBP. Other configurations and assemblies are within the scope of thepresent invention.

The stud mounting brackets as described above are versatile and permit auser to use the bracket with various size junction boxes. The studmounting brackets as described eliminate the need for different depthsof stud mounting bracket based on junction box size, while not requiringany additional material that would add to the cost of the stud mountingbracket. The box mounting bracket as described above is versatile andpermits a user to attach the box mounting bracket at any location alongthe stud mounting bracket. The box mounting bracket also preventsinadvertent removal of the box mounting bracket due to forces appliedduring construction or installation.

Having described embodiments of the invention in detail, it will beapparent that modifications and variations are possible withoutdeparting from the scope of the invention defined in the appendedclaims.

When introducing elements of the illustrated embodiments thereof, thearticles “a”, “an”, “the” and “said” are intended to mean that there areone or more of the elements. The terms “comprising”, “including” and“having” are intended to be inclusive and mean that there may beadditional elements other than the listed elements.

As various changes could be made in the above constructions, products,and methods without departing from the scope of the invention, it isintended that all matter contained in the above description and shown inthe accompanying drawings shall be interpreted as illustrative and notin a limiting sense.

What is claimed is:
 1. A box mounting bracket for mounting a junctionbox on a stud mounting bracket, the box mounting bracket comprising: abase having a front face, a rear face, an upper edge margin and a loweredge margin, the base constructed for attaching a junction box to thefront face thereof; a first jaw extending rearward from one of the upperand lower edge margins of the base, the first jaw configured to engagethe stud mounting bracket for use in attaching the box mounting bracketto the stud mounting bracket; and a second jaw extending rearward fromone of the upper and lower edge margins of the base, the first jawconfigured to engage the stud mounting bracket for use in attaching thebox mounting bracket to the stud mounting bracket, wherein the first andsecond jaws are resiliently deflectable both relative to the base andindependent of one another when attaching the box mounting bracket tothe stud mounting bracket.
 2. The box mounting bracket as recited inclaim 1, wherein the first and second jaws extend rearward from theupper edge margin of the base.
 3. The box mounting bracket as recited inclaim 2, further comprising a third jaw extending rearward from thelower edge margin of the base, the third jaw being resilientlydeflectable both relative to the base and independent of each of thefirst and second jaws when attaching the box mounting bracket to thestud mounting bracket.
 4. The box mounting bracket as recited in claim3, wherein the third jaw comprises an outer jaw arm and an inner jawarm, the outer and inner jaw arms being resiliently deflectable bothrelative to the base and independent of one another.
 5. The box mountingbracket as recited in claim 3, further comprising a fourth jaw extendingrearward from the lower edge margin of the base, the fourth jaw beingresiliently deflectable both relative to the base and independent ofeach of the first, second, and third jaws when attaching the boxmounting bracket to the stud mounting bracket.
 6. The box mountingbracket as recited in claim 3, further comprising a tang extending fromthe third jaw and configured to prevent inadvertent removal of the boxmounting bracket from the stud mounting bracket.
 7. The box mountingbracket as recited in claim 2, wherein each of the first and second jawscomprises a hook configured to prevent inadvertent removal of the boxmounting bracket from the stud mounting bracket.
 8. The box mountingbracket as recited in claim 1, wherein the first and second jaws extendrearward from the lower edge margin of the base.
 9. The box mountingbracket as recited in claim 8, wherein each of the first and secondlower jaws comprises an outer jaw arm and an inner jaw arm, the outerand inner jaw arms being resiliently deflectable both relative to thebase and independent of one another.
 10. The box mounting bracket asrecited in claim 9, further comprising a connecting memberinterconnecting the outer arms of the first and second jaws.